netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* More complex PBR rules
@ 2019-07-06 23:06 Markus Moeller
  2019-07-07 13:24 ` David Ahern
  0 siblings, 1 reply; 3+ messages in thread
From: Markus Moeller @ 2019-07-06 23:06 UTC (permalink / raw)
  To: netdev

Hi Network developers

I am new to this group and wonder if you can advise how I could implement 
more complex PBR rules to achieve for example load balancing. The 
requirement I have is to route based on e.g. a hash like:

  hash(src-ip+dst-ip) mod N  routes via  gwX    0<X<=N   ( load balance over 
N gateways )

  This would help in situations where I can not use a MAC for identifying a 
gateway  ( e.g. in cloud environments) .

   Could someone point me to the kernel source code where PBR is performed ?

Thank you
Markus 



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: More complex PBR rules
  2019-07-06 23:06 More complex PBR rules Markus Moeller
@ 2019-07-07 13:24 ` David Ahern
  2019-07-07 23:20   ` Markus Moeller
  0 siblings, 1 reply; 3+ messages in thread
From: David Ahern @ 2019-07-07 13:24 UTC (permalink / raw)
  To: Markus Moeller, netdev

On 7/6/19 5:06 PM, Markus Moeller wrote:
> Hi Network developers
> 
> I am new to this group and wonder if you can advise how I could
> implement more complex PBR rules to achieve for example load balancing.
> The requirement I have is to route based on e.g. a hash like:
> 
>  hash(src-ip+dst-ip) mod N  routes via  gwX    0<X<=N   ( load balance
> over N gateways )

Have you tried multipath routing? Does that not work for you?

> 
>  This would help in situations where I can not use a MAC for identifying
> a gateway  ( e.g. in cloud environments) .
> 
>   Could someone point me to the kernel source code where PBR is performed ?
> 

net/core/fib_rules.c

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: More complex PBR rules
  2019-07-07 13:24 ` David Ahern
@ 2019-07-07 23:20   ` Markus Moeller
  0 siblings, 0 replies; 3+ messages in thread
From: Markus Moeller @ 2019-07-07 23:20 UTC (permalink / raw)
  To: netdev, David Ahern

Hi David,

  I read up about multipath routing and ecmp. It seems to do what I am 
looking for.

Thank you
Markus

-----Original Message----- 
From: David Ahern
Sent: Sunday, July 7, 2019 2:24 PM
To: Markus Moeller ; netdev@vger.kernel.org
Subject: Re: More complex PBR rules

On 7/6/19 5:06 PM, Markus Moeller wrote:
> Hi Network developers
>
> I am new to this group and wonder if you can advise how I could
> implement more complex PBR rules to achieve for example load balancing.
> The requirement I have is to route based on e.g. a hash like:
>
>  hash(src-ip+dst-ip) mod N  routes via  gwX    0<X<=N   ( load balance
> over N gateways )

Have you tried multipath routing? Does that not work for you?

>
>  This would help in situations where I can not use a MAC for identifying
> a gateway  ( e.g. in cloud environments) .
>
>   Could someone point me to the kernel source code where PBR is performed 
> ?
>

net/core/fib_rules.c



^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-07-07 23:20 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-06 23:06 More complex PBR rules Markus Moeller
2019-07-07 13:24 ` David Ahern
2019-07-07 23:20   ` Markus Moeller

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).